THE FLEISCHMANN LABORATORIES FOR THE INVESTIGATION OF FERMENTATION AND FOR INDUSTRIAL RESEARCH STANDARD BRANDS INCORPORATED BETTS AVENUE STAMFORD, CONN. November 23, 1953 Dr, Joshua Lederberg Dept, of Genetics University of Wisconsin Madison 6, Wisconsin Dear Josh: In reply to your letter of October il, I will be sled to send you the cultures you ask for, My cultures are all in lyophil now, and since I have only a limited number of each type, I would anoreciate it if you would relyo- philize the stocks after you heve checked them out, We don't have a lyophilization set-up goins at the moment = hence my request, As regards the question of mating ability of "inviablen haploids, it was on the books to be studied at Oak Ridge, but was not done by me [or anyone else thet I have heard], IT am sending under seperate cover the reorint that you asked for, Thanks very much for the group you sent me, Congratulations on the Lilly Awerd - it could not have been more outstandingly deserved, Regards to #sther, . Best wishes, Seypour Pomper